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Canon 17-40mm L, sharpness ok?

Started May 1, 2014 | Discussions thread
gipper51 Veteran Member • Posts: 5,904
Re: Canon 17-40mm L, sharpness ok?

The 17-40 is often blurry in the corners if you use autofocus for objects further away.  The lens focuses correctly, but that's often too far for the near corners to be sharp.  Try experimenting with manually focusing and I bet you'll find they get better.

I've found the lens is best at f11, where if focused properly it's quite sharp into the extreme corners (a good copy anyway).

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Canon EOS 5DS Panasonic Lumix DMC-GX85 Canon EOS R6 Mark II Canon EF 85mm F1.8 USM Canon EF 135mm F2L USM +20 more
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